Well guys,, I am having so much fun flying my 34% Turbo prop laser, I have decided to put the T 34 on the back burner for now and build another laser, but this time the 40%.

Being a Turbo prop engine, which has absolutely no vibrations, I plan to make this airplane as light is it will be possible, I'm shooting for 28 lbs.

Today I have cut the formers and started to lightning them up as I will through out the building process.

Roger

Sub'd. What kind of turbo prop are you using?

Originally Posted by 3Dguy

Sub'd. What kind of turbo prop are you using?

Tentatively, its the one on the other laser but I have been offered the use of a Wren 54.

Roger

Hi Roger,

Looks like you are hooked on Lasers as I am on Ravens, I think it is great to keep developing a concept to its potential, all the best for an exciting new build. I'm hooked too !

What is the step up in power with the bigger Wren, and how does that equate to an IC Petrol engine ? And, what prop would you turn ?

I've just opened a nice Hawkes Bay red to celebrate your build... not bad too !!

Cheers, Barrie.

Subscribed!
You never know what Roger may fabricate in his shop for himself next!
(Did you get my e mail last Thursday? I do see you've been quite busy! I understand too if your back burners are on simmer. No real rush.)

brusty- - Wow some Raven! That plane in your avatar really looks BA!

Originally Posted by brusty

Hi Roger,

Looks like you are hooked on Lasers as I am on Ravens, I think it is great to keep developing a concept to its potential, all the best for an exciting new build. I'm hooked too !

What is the step up in power with the bigger Wren, and how does that equate to an IC Petrol engine ? And, what prop would you turn ?

I've just opened a nice Hawkes Bay red to celebrate your build... not bad too !!

Cheers, Barrie.

Hi Barrie,
Yes it is a nice airplane to fly.

I am looking at using a 28 * 6 prop for this airplane , as I don't need the speed. I might purchase one from Seth propellers of Germany because they are the only one with my specs . but I still have time for this.

As the build goes forward Barrie , don't be shy to offer any suggestions, this is what this thread is all about ....

Roger

Originally Posted by jaguar bone

Subscribed!
You never know what Roger may fabricate in his shop for himself next!
(Did you get my e mail last Thursday? I do see you've been quite busy! I understand too if your back burners are on simmer. No real rush.)

brusty- - Wow some Raven! That plane in your avatar really looks BA!

You're too kind and yes I did get you're email , I will get back to you within a day or two.
As for Brusty, this guy is a hell of a builder also, did you know he makes his own propellers also, and beautifull work he does...

Roger

Count me in.

It will be the best flying plane you have ever had Roger. Its like flying a kite on a string.

Scott

Originally Posted by sjmorgan

It will be the best flying plane you have ever had Roger. Its like flying a kite on a string.

Scott

By the way the 34% flies, I think you are right, I was telling Jack yesterday, although just a few flights with ,this airplane , when I did a slow roll, it was the worst looking slow roll I have ever done, I found myself correcting as I do with my Sukoi, which of course I didn't need to, because the airplane is so neutral.
After only three 7 to 8 minute flights, I am hooked, this is by far the best flying airplane I have had, of course I am no Christophe paysant Leroux , or QQ by any means but I can tell the difference.

I am now wondering why there not more people flying this airplane? Probably because its not trendy or not what the big guys fly, its a well hidden secret....

And I forgot to mention , I am still using only 77 ounce Multiplex servos with plastic gears, but with the use of boost tabs, One per airlerons and one per elevator...

I will also use only one servo per aileron and elevators on the 40%, they will be a different servo only because I am running out of servos.

Roger

Originally Posted by forgues research

By the way the 34% flies, I think you are right, I was telling Jack yesterday, although just a few flights with ,this airplane , when I did a slow roll, it was the worst looking slow roll I have ever done, I found myself correcting as I do with my Sukoi, which of course I didn't need to, because the airplane is so neutral.
After only three 7 to 8 minute flights, I am hooked, this is by far the best flying airplane I have had, of course I am no Christophe paysant Leroux , or QQ by any means but I can tell the difference.

I am now wondering why there not more people flying this airplane? Probably because its not trendy or not what the big guys fly, its a well hidden secret....

And I forgot to mention , I am still using only 77 ounce Multiplex servos with plastic gears, but with the use of boost tabs, One per airlerons and one per elevator...

I will also use only one servo per aileron and elevators on the 40%, they will be a different servo only because I am running out of servos.

Roger

Hi Roger
Glad to see you are building the 40% Laser. Im guessing, with all the lite mods, that the final weight will be a lot less than 28#. My guess is 25-26#. The larger plane is easier to fly, and you will enjoy it also.
Regards
Jack

What ever happened to the 35% Yak on a 80 with the cooling blade with boost tabs on the surfaces?

Originally Posted by Cracky

What ever happened to the 35% Yak on a 80 with the cooling blade with boost tabs on the surfaces?

You just awoke a sore spot in my heart,

I flew it only a few times , and I have to tell you, it flew better then expectations , using small servos with boost tabs and the cooling fan ran flawlessly.

But we have a tree that likes to stretch its limbs once in a while and usually

when you are not paying attention. so you guessed it, it has gone to model heaven

Roger

Today, the weather sucks and had other things to do but I did manage to get into the shop, and get a bit of work done.

A lot of what I have learned building the 34% will find its way in the 40%. For instance, the small guide wire retainers I made for the other airplane will find its way here since they work perfectly but this time I have made the adjustment part out of aluminum instead of brass, cutting crucial tail weight down.

The cable I am using for the tail guide wires are of Kevlar (150 lbs)

I also made the foam cutting templates for the wings.

I was lazy on the photos today

Roger

Originally Posted by forgues research

You just awoke a sore spot in my heart,

So sorry to learn this horrific news Roger.

If we fly em...
If we don't fly em, why bother ??